How to use the @angular/compiler-cli.CodeGenerator.create function in @angular/compiler-cli

function codegen(
  ngOptions: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program,
  host: ts.CompilerHost) {
  return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
}

private codegen(ngOptions: tsc.AngularCompilerOptions, cliOptions: tsc.NgcCliOptions, program: ts.Program, host: ts.CompilerHost) {
    return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
  }

export const templateCompiler = async (options: CompileOptions, program: Program, compilerHost: TsCompilerHost): Promise => {
  const hostContext = new NodeCompilerHostContext();

  const ngCompiler = new TranslatingCompilerHost(program, options.angular, hostContext);

  const cli = new NgcCliOptions({
    i18nFormat: null,
    i18nFile: null,
    locale: null,
    basePath: options.angular.basePath
  });

  const generator = CodeGenerator.create(options.angular, cli, program, compilerHost, hostContext, ngCompiler);

  await generator.codegen();

  const metadataWriter = new MetadataWriterHost(compilerHost, options.angular);

  metadataWriter.writeFile = compilerHost.writeFile;

  return metadataWriter;
};

function codegen(
  ngOptions: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program,
  host: ts.CompilerHost) {
  return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
}

function codegen(ngOptions/*: tsc.AngularCompilerOptions*/, cliOptions/*: tsc.NgcCliOptions*/, program/*: ts.Program*/,
                 host/*: ts.CompilerHost*/) {
  return CodeGenerator
    .create(ngOptions, cliOptions, program, host)
    .codegen({transitiveModules: true});
}

function codegen(
  ngOptions: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program,
  host: ts.CompilerHost) {
  return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
}

function codegen(
  ngOptions: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program,
  host: ts.CompilerHost) {
  return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
}

return (ngOptions, cliOptions, program, host) => {
    const hostContext: CompilerHostContext = new WebpackChainModuleResolutionHostAdapter(host, webpackWrapper);
    return CodeGenerator.create(ngOptions, cliOptions, program, host, hostContext).codegen();
  }
}

function codegen(ngOptions: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program, host: ts.CompilerHost) {
    return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
}

private codegen(ngOptions: tsc.AngularCompilerOptions, cliOptions: tsc.NgcCliOptions, program: ts.Program, host: ts.CompilerHost) {
    return CodeGenerator.create(ngOptions, cliOptions, program, host).codegen();
  }